Screwdriver bit attachment



FIG. 1 is a perspective view of a screwdriver bit attachment showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is another perspective view of the screwdriver bit attachment.

The broken lines in the drawings illustrate portions of the screwdriver bit attachment and form no part of the claimed design. 

CLAIM The ornamental design for a screwdriver bit attachment, as shown and described. 